<!DOCTYPE html>
<html lang="en">

<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>vue 学习 1-1</title>
    <script src="https://cdn.jsdelivr.net/npm/vue/dist/vue.js"></script>
</head>

<body>
    <h2>vue文档-介绍</h2>
    <div id="app">
        {{ message }}
    </div>
    <div id="app-2">
        <span v-bind:title="message">
            鼠标悬停几秒钟查看此处动态绑定的提示信息！
        </span>
    </div>
    <div id="app-3">
        <p v-if="seen">现在你看到我了</p>
    </div>
    <div id="app-4">
        <ol>
            <li v-for="todo in todos">
                {{ todo.text }}
            </li>
        </ol>
    </div>
    <div id="app-5">
        <p>{{ message }}</p>
        <button v-on:click="reverseMessage">逆转消息</button>
    </div>
    <div id="app-6">
        <p>{{ message }}</p>
        <input v-model="message">
        <ol>
            <!-- 创建一个 todo-item 组件的实例 -->
            <todo-item></todo-item>
        </ol>
    </div>
</body>
<script>
    var app = new Vue({
        el: '#app',
        data: {
            message: 'Hello Vue!'
        }
    })
    var app2 = new Vue({
        el: '#app-2',
        data: {
            message: '页面加载于 ' + new Date().toLocaleString()
        }
    })
    var app3 = new Vue({
        el: '#app-3',
        data: {
            seen: true
        }
    })
    var app4 = new Vue({
        el: '#app-4',
        data: {
            todos: [
                { text: '学习 JavaScript' },
                { text: '学习 vue' },
                { text: '学习 php' },
                { text: '学习 !!!!' },
            ]
        }
    })
    var app5 = new Vue({
        el: '#app-5',
        data: {
            message: 'Hello Vue.js!'
        },
        methods: {
            reverseMessage: function () {
                this.message = this.message.split('').reverse().join('')
            }
        }
    })

    
    Vue.component('todo-item', {
        template: '<li>这是个待办项</li>'
    })


    var app6 = new Vue({
        el: '#app-6',
        data: {
            message: 'Hello Vue!'
        }
    })


</script>

</html>